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Financial Instruments - Summary of Financial Instruments Not Measured at Fair Value (Detail) | 12 Months Ended
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Mar. 31, 2022 | Mar. 31, 2021
Other Financial Assets and Liabilities [Member] |  |
Disclosure Of Financial Assets And Financial Liabilities [Line Items] |  |
Valuation technique | Discounted cash flows | Discounted cash flows

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- Definition Description of valuation technique using not measured at fair value. + References No definition available. + Details
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- Definition Disclosure Of Financial Assets and Financial Liabilities [line items] + References No definition available. + Details
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- Details
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